Broadleaf

Family: Lamiaceae Herb

Planting Schedule

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Fragrant and velvety, Broadleaf Sage fills the garden with a deep, herbaceous aroma and delivers broad, softly quilted leaves that feel substantial in the hand.

Its flavor is rich and savory with a gentle, cool edge—ideal for crafting bold herb blends and signature sauces, or for drying to capture its character for later use. Grow Broadleaf for a dependable, long-season harvest that turns beds and borders into a fragrant living tapestry.

Light: Full SunMaturity: 70 DaysHabit: Upright

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Broadleaf Planting Dates by USDA Zone

Estimated US hardiness-zone windows for sow, transplant, and harvest. Enter a US ZIP above for exact local dates, or open a zone below.

Zone	Start Indoors	Sow / Transplant	Harvest
Zone 1a	Protected Environment Only
Zone 1b	Protected Environment Only
Zone 2a	Apr 13th	Jul 20th	Sep 28th – Aug 29th
Zone 2b	Apr 3rd	Jul 10th	Sep 18th – Aug 25th
Zone 3a	Apr 3rd	Jul 10th	Sep 18th – Sep 1st
Zone 3b	Apr 7th	Jul 14th	Sep 22nd – Sep 21st
Zone 4a	Apr 3rd	Jul 10th	Sep 18th – Sep 24th
Zone 4b	Apr 1st	Jul 8th	Sep 16th – Sep 27th
Zone 5a	Mar 27th	Jul 3rd	Sep 11th – Sep 30th
Zone 5b	Mar 23rd	Jun 29th	Sep 7th – Oct 5th
Zone 6a	Mar 20th	Jun 26th	Sep 4th – Oct 10th
Zone 6b	Mar 14th	Jun 20th	Aug 29th – Oct 16th
Zone 7a	Mar 9th	Jun 15th	Aug 24th – Oct 20th
Zone 7b	Feb 27th	Jun 5th	Aug 14th – Oct 28th
Zone 8a	Feb 18th	May 27th	Aug 5th – Nov 5th
Zone 8b	Feb 9th	May 18th	Jul 27th – Nov 12th
Zone 9a	Jan 23rd	May 1st	Jul 10th – Nov 26th
Zone 9b	Dec 29th	Apr 6th	Jun 15th – Dec 9th
Zone 10a	—	Oct 1st	Dec 10th – Feb 28th
Zone 10b	—	Oct 1st	Dec 10th – Feb 28th
Zone 11a	—	Oct 1st	Dec 10th – Feb 28th
Zone 11b	—	Oct 1st	Dec 10th – Feb 28th
Zone 12a	—	Oct 1st	Dec 10th – Feb 28th
Zone 12b	—	Oct 1st	Dec 10th – Feb 28th
Zone 13a	—	Oct 1st	Dec 10th – Feb 28th
Zone 13b	—	Oct 1st	Dec 10th – Feb 28th

Crop Details

Trait	Value
Days to Maturity	70
Sun Requirements	Full Sun
Growth Habit	Upright
Support Needed	None
Planting Depth	Normal
Germination Temp (°F)	70
Min Soil Temp (°F)	60
Min Night Temp (°F)	50
Harden Off (days)	7

Culinary Notes

Chef's Note

Broadleaf sage has that substantial, velvety leaf feel and a savory bite that shows up even when the heat is mild—great for quick infusions and fast crisping. It’s built for brown-butter work and creamy pork pasta where its cool, earthy edge cuts through fat without tasting thin or wiry.

Best Uses

pan-frying for sage brown-butter (crisps the edges fast without turning bitter)
quick-chop into pork or sausage mixes
slow simmering into creamy sauces for pasta and gnocchi
drying and rehydrating for winter braises

Flavor Profile

rich savory sage taste velvety, almost slightly mint-cool finish toasty, earthy aroma when heated soft-leaf texture that stays herbaceous but won’t get twiggy quickly

Kitchen Pairings

brown butter pork lemon garlic parmesan butternut squash

Frequently Asked Questions

Why are my broadleaf leaves developing white, powdery patches and curling—what’s the fix?

Powdery mildew is common on broadleaf when days are warm and nights are cool, especially with poor airflow. Remove the most affected leaves, avoid overhead watering, and water at the soil line; then apply a label-approved fungicide or insecticidal soap only if the label allows it for powdery mildew and follow the recommended reapplication interval. Space plants to improve airflow and keep foliage dry as much as possible.

How often should I water broadleaf during the main growth phase (to day ~70)?

Water so the top 1–2 inches of soil dry slightly between waterings, then soak deeply to encourage roots—typically every 2–4 days depending on heat and soil texture. Use a moisture check: if the soil is cool and damp at 1–2 inches, wait; if it feels dry and crumbly, water. Keep moisture steady—alternating drought and heavy soaking can stunt growth and worsen leaf issues.

How can I tell when broadleaf is ready to harvest at around 70 days?

Harvest when plants reach full size and the lower leaves are fully expanded but not prematurely yellowing, with leaf color looking consistent and healthy. If you’re growing broadleaf for tender leaves, pick the outer leaves first when they’re thick and flexible; for larger mature leaves, wait until the leaves hold their shape and have the expected size for your variety. Avoid harvesting after leaves begin to look tough or overly pale, as quality drops quickly.